Key and coin lock with disc assembly



Feb. 5, 1963 A. K. HENSLEY KEY AND com LOCK WITH DISC ASSEMBLY 2 Sheets-Sheet 1 Filed Oct. 7, 1960 Anastasia K. Hensley INVENTOR.

BY Mm Feb. 5, 1963 A. K. HENSLEY 3,076,538

KEY AND com LOCK WITH DISC ASSEMBLY Filed 001;- 7, 1960 2 Sheets-Sheet 2 I38 66 /40 50/34 52 I20 0 o o I 4 //0 0 O 0 O 0 w 96 l I V/ WW EM 3,076,538 KEY AND Ctllhl LQQK WETH Didi: ASSEMBLY Anastasia it. Hensley, 5915 Farmers Drive, Temple Woods, Washington 22, D.C. Filed st. '7, 196b, der. No. HA7? it (Claims. (til. 194-34) The present invention generally relates to a combination lock structure and more particularly a key and coin combination lock especially adapted for use on lockers or the like and especially lockers for use in receiving soiled laundry or dry cleaning and for retaining clean laundry or dry cleaning thereby enabling the complete transaction between the customer and the cleaning establishment without the necessity of having a person to receive the laundry or dry cleaning from the customer and subsequently returning it to them after it has been cleaned.

The primary object of the present invention is to provide a key and coin lock device for locking and releasing a closure member such as is used on lockers or the like for dry cleaning, laundry, so that a customer, upon payment of an initial fixed sum may deposit cleaning in the locker and take the key to the locker with him so that only a service man is then able to open the depository for removal of the soiled cleaning and replacement of cleaning therein, the mechanism being automatically set for enabling the customer by depositing an indicated monetary sum and using his key may regain the cleaned clothes and the lock mechanism being automatically set for receiving the initial deposit of a subsequent customer.

Still another feature of the present invention is to provide a key and coin combination lock in which a portion of the lock mechanism may be removed and orientated in other closure members thus enabling more efiicient operation of the lockers.

Still another object of the present invention is to provide a key and coin combination lock in accordance with the preceding objects which is simple in construction, easy to install, eiilcient in use, foolproof, dependable, long lasting and generally inexpensive to manufacture.

These together with other objects and advantages which will become subsequently apparent reside in the details of construction and operation as more fully hereinafter described and claimed, reference being had to the accompanying drawings forming a part hereof, wherein like numerals refer to-like parts throughout, and in which:

FIGURE 1 is a perspective view of a locker in which the key and coin combination lock of the present invention may be incorporated;

FiGURE 2 is a detailed plan sectional view taken substantially upon a plane passing along section line 2-2 of FlGURE 1 illustrating the lock structure mounted on the closure member;

FIGURE 3 is a side elevatioual View of the lock structure taken substantially upon a plane passing along reference line 3-3 of FIGURE 2;

FIGURE 4 is an end view of the lock mechanism taken substantially upon a plane passing along reference line 44 of FIGURE 3 illustrating further structural details of the lock mechanism and illustrating the mechanism in the initial arrangement;

FIGURE 5 is an end view similar to FIGURE 4 but illustrating the mechanism in the second arrangement;

FIGURE 6 is a view similar to FIGURE 5 but illustrating the mechanism in a third orientation;

FIGURE 7 is a detailed sectional view taken substantially upon a plane passing along section line 7-7 of FIGURE 3 illustrating further structural details of the invention;

FlGURE 8 is a detailed sectional view taken substantially upon a plane passing along section line 8-8 illustrating further structural details of the invention; and

Efififidd l atented Feb. 5, i963 FEGURE 9 is a perspective view of the removable key lock mechanism employed in the present invention.

Referring now specifically to the drawings, the numeral it) generally designates the coin and key lock mechanism or the present invention illustrated in use with a locker or depository generally designated by the numeral 12 which may be of a relatively tall, narrow and deep construction and which may be arranged in side-by-side relation into a bank or group of lockers such as would occur in various public places and in bulidings. The locker l2 defines a hollow housing or casing 14 and is provided with an openable closure member 16 such as a door or the like which is hinged along one side edge thereof and which is biased towards an open position by any suitable spring mechanism so that the door 16 will automatically open when the latch mechanism is released. The door to is provided with a conventional lock mechanism iii which enables a service man to open the door 16 regardless of the condition of the coin and key lock mechanism ill). The coin key lock mechanism it is operated by the customers and also operates a latch mechanism for rel-easing the closure door 16.

The closure door 116 is provided with an opening 20 therein that is normally closed by any suitable removable panel 22 or stationary component of the locker thus forming a closure for the opening 2% when the closure door is closed. This will retain the key lock mechanism generally designated by numeral 24 in the notch 26 pro: vided therefor which communicates with the opening thereby enabling the lock mechanism 24 to be moved upwardly and outwardly for detaching it from the closure door lb.

The lock mechanism 24 includes a body including a front panel 23, an inner panel 3t) and spacers 32 which form vertical grooves for slidahly receiving the edges of the notch 26. Extending longitudinally through the bottom edge of the plates 23 and 359 is a bushing 34 rotatably receiving a barrel 36 which is key operated by a key ill and is of the type in which the barrel 36 may be rotated when the key 4% is inserted. The inner end of the barrel 36 is in the form of a threaded stud having a nut l2 thereon which engages and retains a lock arm generally designated by the numeral i l on the barrel whereby rotation of the barrel will also cause rotation of the lock arm 44.

The lock arm 44 includes a mounting portion 46 received under the nut 42 and an elongated portion 48 extending perpendicularly from the mounting portion es and extending inwardly from the inner plate fill generally in perpendicular relation thereto. The outer end of the elon. gated portion 48 is provided with a lateral extension 50 terminating in an inturned end portion 52 which actually forms the lock function of t e lock arm 44-. Mounted on the elongated portion 43 adjacent the mounting portion 46 is a setscrew 54 in the form of a stop screw for engagement with a stop pin 56 screw threaded into the plate 39. The orientation of the stop pin 5'6 is such that it will prevent rotation of the lock arm beyond a position just slightly past vertical so that the lock arm will stay generally in the vertical position but incline slightly toward the lock pin 56 by virtue of gravity. The horizontal limit of movement of the look arm 44 is limited by the engagement of the inturned locking end 52 with the coin control mechanism in a manner described hereinafter. The outer surface of the outer plate 28 is outer provided with suitable numerical indicia and the key will have corresponding numerical indicia whereby the key and the lock mechanism E i may be matched by the customer. Also, one corner of the outer plate may have an aperture therein for reception over the garment hanger or the like thereby enabling the lock mechanism 24 to accompany the material to be cleaned at all times. In other words when the servicemen picks up the cleaning, he will 3 attach the lock mechanism to the cleaning and thus, the key control lock mechanism 24 will act as a control for the cleaning.

The coin controlled mechanism of the present invention is generally designated by reference numeral 60 and is disposed generally alongside and slightly below the key control mechanism 24. This mechanism includes an outer plate 62 and an inner plate 64 attached to opposite surfaces of the closure member l6. A central shaft 66 is provided which is connected to an operating handle 68 by virtue of a lost motion connection. The outer plate 62 is provided with a coin receiving opening 76 and the closure member 16 is also provided with a slot or recess for receiving the coin. The mechanism between the plates 62 and 64 is a commercially available coin control device which, upon insertion of a coin will enable the handle 68 to be rotated which in turn will pick up the shaft 66 and rotate it. As the handle 63 is rotated, the coin will be discharged downwardly from the inner plate 64 into any suitable receptacle attached to the closure member in such a manner that the coins deposited therein are not accessible except to a service man. The coin lock mechanism includes a ratchet arrangement which precludes reverse rotation of the operating handle after the coin has been inserted and rotated to a predetermined angular relation. Attached to the operating handle 68 is a cam 72 en' aged by a spring 74 for frictionally retarding rotational movement of the operating handle 63. Mounted in spaced relation to the inner plate 64 is a mounting plate '76 retained in position by screws 78 or the like and retained in spaced relation by spacers 38'. All of the construction on the closure door side of the mounting plate 76 is conventional and commercially available and the present invention resides in the particular structure mounted on the shaft 66.

The structure mounted on the shaft 66 is for the purpose of operating a latch arm generally designated by numeral 82 and including a pivot shaft 84 parallel with the shaft 66. The pivot shaft 3 is rotatably supported by a U-shaped bracket 86 attached to a supporting bracket 88 carried by the closure door 16 and attached thereto by fasteners 90 or the like. The end of the shaft 84 adjacent the closure member 16 is provided with a laterally extending latch arm 9'2 for engagement with a keeper on the locker so that when the latch arm 92 is elevated, the keeper is disengaged and the door 16 is automatically opened since the door is spring biased to an open position. An inwardly extending pin 9 is mounted on the closure door 16 to limit the downward movement of the latch arm 92 and generally retain the latch assembly 82 in horizontal position. A coil tension spring 96 has one end attached to an intermediate portion of the latch arm 92 and the other end thereof is attached to an anchor 93 carried by the bracket 83 or attached to the closure door 16 in such a manner that the latch arm 92 will be spring biased downwardly so that when the door 16 is moved manually to a closed position, the latch arm 92 will automatically engage the keeper and retain the door 16 in closed position until it is again actuated by the key and coin control lock. The other end of the shaft 84 is pro vided with an elongated latch actuating arm 1% attached thereto rigidly by a screw threaded fastener 102 or the like. The actuating arm fttlfi extends under the shaft 66 and has a notch 16% in the upper edge thereof to avoid interference with the shaft 66 and the extreme outer end of the actuating arm 1% is provided with a lug 106 which faces or extends toward the closure door 16 for actuating the latch arm 92 when the lug 166 is engaged and moved downwardly and subsequently released by the coin control mechanism thereby releasing the latch arm 92 and opening the closure door 16.

The coin control mechanism 69 includes three discs rotatable freely on the shaft 66. The disc most adjacent the plate 76 is designated by reference numeral 1% and is hereinafter called the first disc, the second disc is designated by numeral 114 and the third disc is designated by numeral 112. The discs are retained in mutually spa ed relation by spacers and are also releasably retained on the shaft 66 by collars attached to the shaft 66 which permits free rotation of the discs 1884.12 in relation to the shaft 66. For frictionally and resiliently retaining the discs 1%, 110 and 112 in place, there is provided a bracket 114 extending parallel to the shaft 66 and the bracket 114 is provided with an upstanding mounting plate 116 attached thereto by screw threaded fasteners 118 or the like and the upper edge of the mounting plate 116 is slotted and provided with a plurality of resilient spring fingers 120 which rest against the peripheral surface of each of the discs. The peripheral surface of each of the discs is slightly concaved and provided with a plurality of detents 122 thereon which receive the curved ends 124 of the springs 120 thus retaining the discs in position once they have been set by the service man or once they have been rotated by operation of the operating handle.

The third disc 112 is provided with three circumferentially spaced and radially projecting cams designated by reference numerals 126, 128, and 136 for engagement with the lug 106 for sequentially moving the actuating arm Edi) downwardly and releasing it to return to a horizontal position. The lugs 126436 are secure to the disc 112 by suitable screw threaded fasteners .132 or the like for enabling variations in the angular position of the lugs to provide for adjustment of the lug so that they are properly orientated in relation to the disc and the actuating arm 190. The outer ends of the lugs 126- 130 are somewhat pointed in that they have one beveled surface which provides for immediate release of the lug 106 on the actuating arm 100 inasmuch as the lug 106 is substantially triangular and indicated in dotted lines in FIGURES 5 and 6.

Also mounted on the disk 112 is an arcuate keeper plate 134 attached to the disc 112 by screw threaded fasteners 136 or the like and the keeper plate 134 is in spaced relation circumferentially to the lugs 126, 123 and 130. The outer peripheral surface of the keeper plate 134 is arcuate about a center generally defined by the center of the shaft 66 and the keeper plate 134 is provided with a pair of inwardly extending radial notches 138 and 140 that are circumferentially spaced from each other and divide the peripheral surface of the keeper plate 134 into a first arcuate surface or abutment 142 and a second arcuate surface or abutment 144. The slots or notches 138 and 140 as well as the abutment surfaces 142 and 144 cooperate with the inwardly extending portion 52 of the lock arm 44 to permit limited rotation of the disk 112 under certain circumstances and the notches 138 and 140 permit the lock arm 44 to pivot all the way to a horizontal position for enabling removal of the key 49 which cannot be removed until the lock arm id is moved to the horizontal position such as illustrated in FIGURE 5.

Disposed on the inner surface of the disc 112 is an inwardly extending lug 146. The intermediate or second disc 110 is provided with a lug 148 on the face thereof which is disposed adjacent the third disc 112 and a lug 156 thereon on the opposite side or on the face of the disc 110 which faces the disc 168. The lug 150 is staggered in relation to the lug 148 and is disposed in the direction of rotation wherein the trailing edge of the lug 150 will generally be coincidental with the leading edge of the lug 148. Thus, when the lug 148 is engaged with the lug 146 as is illustrated in FIGURE 3, the lug 150 and the lug 146 will be disposed in alignment.

The disc 108 is provided with a lug 152 on the surface thereof facing the disk 108 for engagement with the lug 150. Thus, when the lug 152 is engaged with the lug 150, it will be in axial alignment with the lug 148 on the disc 110. Also, the disc 168 is provided with a plurality of outwardly extending projections 15 i having generally a radial surface 156 and an inclined surface a) 153. This construction is in the form of a ratchet gear and is integral with the disc 163. The radial surfaces 156 face in the direction opposite to the direction of rotation of the disc for engagement with a ratcheting mechanism generally designated by numeral 160 which is employed for rotating the disc 1131; in a manner described hereinafter.

The ratcheting mechanism includes an arm 162 freely pivotally mounted on the shaft 66 and extending parallel to the disc 1G8 and radially from the shaft 66. The outer end of the arm is provided with a lateral mounting bracket 164 which is substantially U-shaped in configuration and extends into overlying relation to the disc 10% in spaced relation to the projections 154. The U-shaped bracket 16d pivotally supports a pawl 166 which engages the projections 154 and a curved leaf spring 167 engages the top surface of the pawl 166 and is mounted on the bracket 164 for resiliently biasing the pawl 166 into engagement with the lugs or projections thereby forming a ratchet mechanism so that when the arm 1-62 is rotated in a clockwise direction when viewing the device from the operating handle, the pawl 166 will engage a projection and carry the disc 1193 with the arm 162. The bracket 1% is connected with a tension coil spring 169 which has the other end terminally secured to a projecting pin 17% carried by the plate '76 thus urging the ratchet mechanism back to a normal position against a stop pin 172 also attached to the plate 76. Thus, the arm 162 and bracket 164 may be moved arcuately for propelling the disc 1G3 and the spring 169 will return the arm 162, bracket 164 and pawl 166 back to a normal position against the stop pin 172 when the driving force provided by the operating handle 68 is disconnected from the operating arm 162.

For causing arcuate movement of the arm 1'2, the arm 162 is provided with a lug 174 on the surface thereof remote from the disc 108 and facing the supporting plate 76. Attached to the output shaft 66 which becomes positively coupled to the operating handle 63 when a coin is deposited, is an arm 176 which rotates with the shaft 66 when it is driven by the operating handle 68. The arm 176 is provided with a slot 173 therein which pivotally receives a catch or latch member 18% pivoted at the inner end thereof by a pivot pin and spring biased away from the surface of the arm 1'76 disposed towards the arm .162 by virtue of a leaf spring 132. The pawl 18% is thicker than the arm 176 and is of such a dimension that it will project from the face of the arm 176 which is disposed adjacent the arm 162 and engage the lug 174 on the arm 162 when the surface of the arm 176 adjacent the plate and the surface of the pawl 13%) adjacent the plate '76 are coincidental or flush. The increase in dimension of the pawl 136i is effected by a projection 184 at the outer end thereof which enables the spring 182 to be disposed in an outof-the-way position and thereby assuring that the spring 182 will not engage the lug 174.

For forcing the pawl 18th to the position illustrated in FIGURE 8 for engagement of the projection 134 with the lug 174, there is provided a earn 186 rigidly mounted on or integral with the mounting plate 76 which cam 11% has an inclined surface 138 and a rapid drop-oil surface 1% whereby the pawl 130 will engage the lug 174 and move the arm 162 a circumferential distance equivalent to the width of the pawl 18% inasmuch as the pawl 1011 will follow the rapid drop-d 1% and become disconnected from the lug 174. Thus, each time the operating handle 63 is rotated with a coin therein which will cause rotation of the shaft 66, the arm 176 will be rotated along with the pawl 181) and the arm 162 will be rotated only a minor distance and then be withdrawn by the spring 16$ when the pawl 180 releases the lug 174. The distance of movement of the arm 162 and the pawl 166 thereon is sufiicient to enable the pawl 166 to engage a different projection 154 each time the operating handle 68 is rotated.

d FIGURE 4 illustrates the initial position of the device and this is also illustrated in FIGURES 2 and 3. In this condition, the key 49 is in the lock mechanism 24 and the lock arm 44 is swung toward a horizontal position but cannot move all the way to a horizontal position since it engages the abutment surface 142 thus preventing removal of the key 4b. In this condition, the first lug 126 is disposed above the lug 1% on the actuating arm 1%. The disc 111 has been turned freely so that the lug 148 is in engagement with the lug 146 so that when the disc 116 is rotated in a clockwise direction with the operating handle 68 when viewing the device from the operating handle 68, the disc 112 will also be rotated a corresponding amount which need be only an arcuate distance sufficient to enable the inturned end 52 of the lock arm 44 to be aligned with and received Within the notch 138 and to cause the lug 126 to depress the actuating arm lilil thus elevating the latch arm 92 and releasing the door thus enabling the door to move to an open position. The disc 1% has been rotated so that the lug 152 is in engagement with the'lug so that any movement of the disc 1% will cause corresponding movement of the discs 110 and 112. This arrangement is where it is only necessary for a customer to provide a single coin when initially depositing the clothes. The customer will deposit the coin in the provided slot 70 and then rotate the operating handle 68. Rotation of the operating handle 68 will cause rotation of the shaft 66 and the arm 176 attached thereto.

T he coin has formed a connection between the operating handle 63 and the shaft 66 thus providing for positive rotation of the arm 176. As the arm continues in rotation, the operating mechanism releases the coin at a predetermined point and the arm will be continued to rotate and the pawl 18th will engage the inclined surface 188 of the cam 136 thus engaging the pawl with the lug 174 on the arm 162 thus moving the arm 162 an arcuate distance equivalent to the distance between the detent recesses 122 and equal to the distance necessary for the notch 138 to receive the inturned end 52 of the lock arm 44 which will be considered one increment of movement. As the pawl 134) passes the rapid drop-off point 190, it will disengage from the lug 174 thus enabling the spring to return the arm 162, bracket 164 and pawl 166 back to a position against the stop pin for subsequent operation by another coin whereby each coin deposited will enable one complete rotation of the operating handle, one complete rotation of the arm, and rotation of the disc 1% one increment of movement. Thus, by varying the initial position of the disc 1%, the number of coins necessary to cause operation of the disc 110 and 112 may be varied. For example, if the disc 168 were initially set so that the lug 152 was spaced one increment of movement away from the lug 151), then it would be necessary to drop two coins into the machine in order to provide two increments of movement of the disc 108 before the discs 110 and 112 are actuated. One of these coins would move the disc 108 to bring the lug 152 into engagement with the lug 151) and the second coin would move the disc 168 and lug 152 one increment of movement and carry the discs 110 and 112 with it.

When the discs 11d and 112 are moved a single increment of movement, the latch arm 92 has been operated to release the door and the lock arm 44 swings down by gravity into a full horizontal position thus enabling the key to be withdrawn. The customer inserts the soiled cleaning in the locker and removes the key. The serviceman then must service the locker and when he does, he will open the door 16 by any other suitable lock mechanism to which he has a key and remove the lock mechanism 24 and carry it with the cleaning. He may then insert clean cleaning into the same locker along with an other lock mechanism to enable continued use of the locker. When the serviceman puts new cleaning in the locker, he need not move any of the discs with the exception of disc res. This disc he rotates to a desired position depending upon the number of coins required for the customer to pay for the cleaning. Indicia may be provided alongside of the projections 154 to indicate the proper positioning of the projections 154 in relation to the pawl 166 in order to orientate the lug 152 in proper spaced relation to the lug 150. In other words, if three quarters are necessary, the disc 103 is set so that three increments of movement of disc 108 are necessary before a single increment of movement of disc 112 is accomplished. This is the position illustrated in FIGURE and the second lug 125 is disposed above the lug 106 on the actuating arm ltlil and the locking arm 44 is in horizontal position. A person possessing the key to the lock mechanism may obtain his cleaning by inserting the key 40 and pivoting the lock arm 44 upwardly to an out-of-the-way position. He must then insert the proper number of coins with the operating handle being rotated a full turn each time a coin is deposited. For each rotation of the arm 176, the disc 108 will be moved one increment of movement and when the proper number of coins has been deposited, the disc 108 will then move disc 110 and disc 112 one increment of movement which will cause the latch mechanism to be compressed thus opening the door and enabling the customer to obtain his cleaning. Note that this has positioned the disc 112 with the third lug 130 overlying the lug on the latch operating arm 100 and has also disposed the arcuate abutment surface 144 in alignment with the inturned end 144 of the latch arm. This prevents the customer from again obtaining possession of the key since the key cannot be removed unless the latch arm is disposed in one of the notches 138 and 140. This position is illustrated in FIGURE 6 and the mechanism is now ready for deposit of other soiled cleaning since all of the lugs 152, 153, 148 and 146 are interconnected with each other and it only requires a single increment of move ment to again depress the actuating arm 160 and release the door thus moving the disc 112 to enable the inturned end 52 to be received in the notch 140 thus enabling the key to be removed by the customer who has just inserted a single coin and has just deposited his cleaning. The serviceman then will have to service the locker and will have to reset the discs to either the condition illustrated in FIGURE 4 so that it may receive other soiled cleaning or in the condition illustrated in FIGURE 5 in which event he places clean clothes in the locker.

Thus, it will be seen that the clothes may be deposited by a customer when they are desired to be cleaned, removed by the serviceman and replaced without there being an attendant and further, the structure of the lock mechanism is very simple and requires very little resetting time by the serviceman, all of which increases the efficiency of the locker and reduces the overhead necessary in this type of establishment.

The foregoing is considered as illustrative only of the principles of the invention. Further, since numerous modifications and changes will readily occur to those skilled in the art, it is not desired to limit the invention to the exact construction and operation shown and described, and accordingly all suitable modifications and equivalents may be resorted to, falling within the scope of the invention as claimed.

What'is claimed as new is as follows:

1. A key and coin lock mechanism comprising a mov able closure member, a rotatable shaft mounted on the closure member, an operating knob for the shaft, said operating knob being connected to the shaft through means whereby a coin interconnects the knob and shaft, a plurality of spaced discs freely rotatably mounted on the shaft, means selectively interconnecting the shaft and the first disc for imparting one increment of movement to the first disc, means interconnecting the first and second discs of imparting an increment of movement of the first disc to the second disc, and means interconnecting the second disc and third disc for imparting rotational movement of the third disc from the second disc, a latch arm, and means on the third disc operating the latch arm upon rotation of the third disc a predetermined increment of movement, and a key controlled lock arm engageable with the third disc for preventing rotation thereof in predetermined positions of the lock arm and third disc.

2. A key and coin lock mechanism comprising a movable closure mcmber, a rotatable shaft mounted on the closure member, an operating knob for the shaft, said operating knob being connected to the shaft through means whereby a coin interconnects the knob and shaft, a plurality of spaced discs freely rotatably mounted on the shaft, means selectively interconnecting the shaft and the first disc for imparting one increment of movement to the first disc, means interconnecting the first and second discs for imparting an increment of movement of the first disc to the second disc, and means interconnecting the second disc and third disc for imparting rotational movement to the third disc from the second disc, a latch arm, and means on the third disc operating the latch arm upon rotation of the third disc a predetermined increment of movement, and a key controlled lock arm engageable with the third disc for preventing rotation thereof in predetermined positions of the lock arm and third disc, said third disc including an arcuate plate projecting peripherally from a portion of the surface thereof, said plate including a pair of spaced radial notches receiving the lock arm, the peripheral surface of the plate adjacent the notches forming an abutment surface for engagement by the lock arm thereby preventing complete movement of the lock arm to a locked position. thereby preventing removal of the key from the lock mechanism carrying the lock arm, movement of the lock arm into the notches enabling removal of the key and preventing rotation of the third disc.

3. The structure as defined in claim 2 wherein said third disc is provided with three circumfcrentially spaced lugs, said latch arm including a spring biased actuating arm extending alongside of the lugs on the third disc, a lug on the actuating arm for engagement by one of the lugs on the third disc whereby sequential increments of movement of the third disc will release the latch arm three times.

4. The structure as defined in claim 3 wherein the means interconnecting the second and third discs includes a lug on each of the discs, said lugs being disposed in the path of movement of each other.

5. The structure as defined in claim 4 wherein the means interconnecting the first and second discs includes a lug on each disc, said lugs being disposed in the path of movement of each other, said first disc be'ng rotatable in relation to the second disc whereby the space between the lugs on the first and second discs may be varied thereby determining the increments of movements of the first disc necessary before motion is imparted to the second disc.

6. The structure as defined in claim 5 wherein said means interconnecting the shaft and first disc includes ratchet projections on the first disc, an arm freely mounted on the shaft, a pivotal pawl mounted on the arm for engagement with the ratchet projections, and means interconnecting the arm and shaft during only a partial revolution of the shaft for moving the arm a single increment of movement for each revolution of the shaft.

7. The structure as defined in claim 6 wherein the means interconnecting the arm and shaft includes an actuating arm rigid with the shaft, a pivotal lug mounted on the actuating arm, a stationary cam supported from the closure member for moving the pivotal lug on the arm rigid with the shaft into engagement with the arm carrying the pawl thereby moving the arm having the pawl thereon a single increment of movement.

8. The structure as defined in claim 7 wherein all of said discs are prevented from free rotation by a plurality of spring fingers.

9. A key and coin lock mechanism comprising a movable closure member, a rotatable shaft mounted on the closure member, an operating knob for the shaft, said operating knob being connected to the shaft through means whereby a coin interconnects the knob and shaft, a plurality of spaced discs freely rotatably mounted on the shaft, means selectively interconnecting the shaft and the first disc for imparting one increment of movement to the first disc, means interconnecting the first and second discs for imparting an increment of movement of the first disc to the second disc, and means interconnecting the second disc and third disc for imparting rotational movement to the third disc from the second disc, and means on one of said operating discs for operating the latch means upon rotation of said disc a predetermined increment of movement, and a lock arm engageable with one of said discs for preventing rotation thereof in predetermined positions of the lock arm and said disc, said lock arm being controlled by a key mechanism whereby the key cannot be extracted except when the lock arm is in locking position in relation to said disc.

10. A key and coin lock mechanism comprising a movable closure member, a rotatable shaft mounted on the closure member, operating means for the shaft, means connecting the operating means to the shaft through a coin, a plurality of discs rotatably mounted on the shaft, means selectively inter-connecting the shaft and the first disc for imparting one increment of movement to the first disc, means interconnecting the discs to impart rotation from one to the other in a sequential manner, and means engageable with one of said disks for operating a latch mechanism, and a lock arm engage-able with the same disc for preventing rotation thereof in certain positions of the disc and in a locking position for the lock arm.

Hall Oct. 14, 1913 Schultz Oct. 12, 1926 

1. A KEY AND COIN LOCK MECHANISM COMPRISING A MOVABLE CLOSURE MEMBER, A ROTATABLE SHAFT MOUNTED ON THE CLOSURE MEMBER, AN OPERATING KNOB FOR THE SHAFT, SAID OPERATING KNOB BEING CONNECTED TO THE SHAFT THROUGH MEANS WHEREBY A COIN INTERCONNECTS THE KNOB AND SHAFT, A PLURALITY OF SPACED DISCS FREELY ROTATABLY MOUNTED ON THE SHAFT, MEANS SELECTIVELY INTERCONNECTING THE SHAFT AND THE FIRST DISC FOR IMPARTING ONE INCREMENT OF MOVEMENT TO THE FIRST DISC, MEANS INTERCONNECTING THE FIRST AND SECOND DISCS OF IMPARTING AN INCREMENT OF MOVEMENT OF THE FIRST DISC TO THE SECOND DISC, AND MEANS INTERCONNECTING THE SECOND DISC AND THIRD DISC FOR IMPARTING ROTATIONAL MOVEMENT OF THE THIRD DISC FROM THE SECOND DISC, A LATCH ARM, AND MEANS ON THE THIRD DISC OPERATING THE LATCH ARM UPON ROTATION OF THE THIRD DISC A PREDETERMINED INCREMENT OF MOVEMENT, AND A KEY CONTROLLED LOCK ARM ENGAGEABLE WITH THE THIRD DISC FOR PREVENTING ROTATION THEREOF IN PREDETERMINED POSITIONS OF THE LOCK ARM AND THIRD DISC. 